McGraw Fertilizer Service Inc - Products

At McGraw Fertilizer Inc, we offer Lime - Fertilizer- Chemicals for all of your growing needs.  Crops need readily available nutrients for successful production.  N-P-K, Nitrogen-Phosphorus-Potassium (K) can be custom blended to suit your individual needs. 

We have dry and liquid fertilizer, agricultural herbicides, and other farm products available.

Products include:

    • Anhydrous ammonia
    • Urea
    • Urea Blends
    • UAN solutions
    • Ammonium nitrate solution
    • Ammonium polyphosphate (10-34-0)
    • Ammonium thiosulfate
    • Phosphate
    • Potash
    • Sulfur-based products
    • Blended fertilizers

Nitrogen (N) is an essential element of plant growth and development and will produce a dark green healthy plant.  Nitrogen is the most commonly deficient nutrient in Kansas soils.  We carry both Ammonium Nitrate (34-0-0) and Urea (46-0-0).

Phosphorus (P) stimulates early plant growth and hastens maturity.  Phosphorus is the second most commonly deficient nutrient in Kansas soils.  It is considered the "batteries" of a plant which stores and transfers energy.  We carry Diammonium Phosphate (18-46-0).  With each 46 units of Phosphorus, you will receive 18 units of N.

Potassium (K) stimulates early growth and increases protein production, plus improves water efficiency.  Potash, (0-0-60) as it is commonly known, increases drought resistance in plans and helps reduce plant water loss. 

LIQUID FERTILIZER is custom blended to your custom specifications at McGraw Fertilizer as well.   N in the form of 28-0-0 or 32-0-0 can be mixed with Phosphorus (10-34-0) and Potassium (4-10-10), as well has some herbicides.

SULFERS (S) deficiency can sometimes be mistaken for nitrogen deficiency (and is a required ingredient to aid in nitrogen efficiency).  Sulfur can be added with your dry fertilizer blend and also with liquid fertilizer using Ammonium Thiosulfate (A T) (12-0-0-26). 

ZINC  (Z) is absorbed through the root of the plant and helps with growth regulation and can be added to your dry fertilizer blend.


Ag Lime has a five year average cycle, peaking in year three.  Pellitized Lime is effective with the current crop year and can be mixed with your dry fertilizer blend.  The life of pellitized lime is similar to N-P-K, and is determined by what your crop uses during the growing season.




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